You cannot make Remembrance grow

You cannot make Remembrance grow
When it has lost its Root —
The tightening the Soil around
And setting it upright
Deceives perhaps the Universe
But not retrieves the Plant —
Real Memory, like Cedar Feet
Is shod with Adamant —
Nor can you cut Remembrance down
When it shall once have grown —
Its Iron Buds will sprout anew
However overthrown —